Home / 202,128,776.10-303,193,164.15-81,047,124.90

Finding the Fourth Proportional to 202,128,776.10, 303,193,164.15 and 81,047,124.90

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Solution

The fourth proportional to 202,128,776.10, 303,193,164.15 and 81,047,124.90 is: 121,570,687.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,128,776.10 : 303,193,164.15 = 81,047,124.90 : x
  2. Step 2: Convert to fraction form
    202,128,776.10/303,193,164.15 = 81,047,124.90/x
  3. Step 3: Cross multiply
    202,128,776.10x = 303,193,164.15 × 81,047,124.90
  4. Step 4: Simplify right side
    202,128,776.10x = 24,572,934,243,691,252
  5. Step 5: Solve for x
    x = 24,572,934,243,691,252/202,128,776.10
  6. Step 6: Final answer
    x = 121,570,687.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.